| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [indef pn] [be] [v-ing] [pron] back | 6 |
|
| 2 | [indef pn] be [v-ing] [pron] back | 6 |
|
| 3 | [indef pn] [be] [v-ing] [pers pn] back | 5 |
|
